Malware Analysis Report

2025-03-15 05:49

Sample ID 240623-267n7s1aqn
Target 03d427efac05fcea29d193a0ab611590_JaffaCakes118
SHA256 93c743f15a30c81ea165c502b8ee1f73d95931d204df6322d5146911cc7123b6
Tags
aspackv2
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

93c743f15a30c81ea165c502b8ee1f73d95931d204df6322d5146911cc7123b6

Threat Level: Shows suspicious behavior

The file 03d427efac05fcea29d193a0ab611590_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

aspackv2

ASPack v2.12-2.42

Drops file in System32 directory

Unsigned PE

Enumerates physical storage devices

Modifies registry class

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-23 23:12

Signatures

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-23 23:12

Reported

2024-06-23 23:15

Platform

win7-20240220-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe"

Signatures

Drops file in System32 directory

Description Indicator Process Target
File opened for modification \??\c:\windows\SysWOW64\opfileOneA C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\opfileOneA C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\23452312481\mu23452312481.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\ywsfiletmp.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\23452312481\mu23452312481.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\23452312481\fj23452312481.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\23452312481\sx23452312481.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\opfilejlA C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\filebak C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\23452312481\lk23452312481.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\23452312481\sx23452312481.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\filebak C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\ywsinid.files\25.bmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\23452312481\23452312481.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\23452312481\23452312481.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\syys6.8.1.syw C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\opfilejlA C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\23452312481\lk23452312481.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\23452312481\fj23452312481.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\PowerPoint.Show.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\Version\ = "6.8.1" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open\command C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open\command\ = "c:\\windows\\SysWow64\\ÓÑÒæÎÄÊé.exe %1" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Excel.Sheet.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\DefaultIcon\ = "c:\\windows\\SysWow64\\ÓÑÒæÎÄÊé.exe,1" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.yws C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.yws\ = "ywsfile" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\isogg = "alrGady" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8 C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\ = "ÓÑÒæÎÄÊé" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\Version C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\DefaultIcon C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe"

Network

N/A

Files

memory/2088-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

memory/2088-20-0x0000000000400000-0x0000000000596000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-23 23:12

Reported

2024-06-23 23:15

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe"

Signatures

Drops file in System32 directory

Description Indicator Process Target
File created \??\c:\windows\SysWOW64\yytmp1\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\ywsfiletmp.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\opfilejlA C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\filebak C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\ywsinid.files\25.bmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\23472312140\23472312140.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\opfileOneA C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\23472312140\sx23472312140.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\opfilejlA C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\filebak C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\23472312140\lk23472312140.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\23472312140\sx23472312140.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\23472312140\mu23472312140.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\23472312140\fj23472312140.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\23472312140\fj23472312140.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\opfileOneA C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\23472312140\23472312140.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\syys6.8.1.syw C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\yytmp1\23472312140\mu23472312140.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File opened for modification \??\c:\windows\SysWOW64\yytmp1\23472312140\lk23472312140.tmp C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
File created \??\c:\windows\SysWOW64\ÓÑÒæÎÄÊé.exe C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\Version C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\DefaultIcon C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\ = "ÓÑÒæÎÄÊé" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.yws C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.yws\ = "ywsfile" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open\command C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open\command\ = "c:\\windows\\SysWow64\\ÓÑÒæÎÄÊé.exe %1" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\DefaultIcon\ = "c:\\windows\\SysWow64\\ÓÑÒæÎÄÊé.exe,1" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\PowerPoint.Show.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\Version\ = "6.8.1" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\shell\open C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8 C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Word.Document.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\Excel.Sheet.8\EditFlags = "65536" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ywsfile\isogg = "alrGady" C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\03d427efac05fcea29d193a0ab611590_JaffaCakes118.exe"

Network

Files

memory/3296-0-0x00000000021F0000-0x00000000021F1000-memory.dmp

memory/3296-20-0x0000000000400000-0x0000000000596000-memory.dmp